fond of a factor? Urn yourself to become remains - Page 77

markr · 2013-12-19, 11:09

Nice, cheesehead!

Batalov · 2013-12-20, 17:43

Found a factor of 7 ;-)
145309103373453*2^3990-5 is composite: RES64: [00000000000002D9] (0.0132s+0.0000s)

Now, you'll say who runs pfgw with -f0 and then shares this silliness? (2D9_hex = 3^7-1)

Well, it is a part of a silly almost-quintuplet:
145309103373453*2^3990-5 is 7*p1215
145309103373453*2^3990-1 is prime
145309103373453*2^3990+1 is prime
145309103373453*2^3990+5 is prime
145309103373453*2^3990+7 is prime

Uncwilly · 2013-12-27, 02:53

Quote:

Originally Posted by Uncwilly

120.6 bits A new personal best!!!!!

Found a 117 bit on the 23rd.

Quote:

Originally Posted by Uncwilly

I had one machine find 2 factors in 2 days both P-1 stage 1.
64320973 has a factor of 4171438018009522530410037151 91.8 bits

And a new personal best for stage 1:
M64680983 has a factor: 14363804976454221186936300663583
103.5 bits, k = 111035765925621609576777 = 3² × 7 × 13 × 739 × 2579 × 6323 × 52057 × 216113

Jwb52z · 2014-01-09, 16:42

P-1 found a factor in stage #1, B1=705000.
UID: Jwb52z/Clay, M69221417 has a factor: 227258439341805150214805809

87.555 bits.

Jwb52z · 2014-01-17, 14:44

P-1 found a factor in stage #2, B1=705000, B2=14628750.
UID: Jwb52z/Clay, M69160561 has a factor: 6801529600136142988183258993

92.458 bits.

Jwb52z · 2014-01-18, 16:40

P-1 found a factor in stage #2, B1=705000, B2=14628750.
UID: Jwb52z/Clay, M69408289 has a factor: 118214961583770382650313

76.646 bits

TheJudger · 2014-01-19, 16:28

Good start in factoring season 2014:

P-1 found a factor in stage #1, B1=670000.
M65508869 has a factor: 175927641847360083407185992694635239625947165412379183 (176.88 bits)

I'm not 100% sure but I think this is my biggest "regular P-1 double factor" so far.

f₁ = 12348810633422410377735721 (83.35 bits)
k₁ = 94252967742599940 = 2^2 * 3 * 5 * 193 * 3407 * 21839 * 109391

f₂ = 14246525197431311465890025623 (93.52 bits)
k₂ = 108737377204843144719 = 3^3 * 13 * 17 * 19 * 23 * 8597 * 33317 * 145589

Oliver

P.S. I'll throw this factor back into the sea using it as bait for the big one.

YuL · 2014-01-22, 10:39

[Tue Jan 21 07:56:58 2014]
P-1 found a factor in stage #1, B1=615000.
M67983497 has a factor: 1753010986832384134537496993
90.5 bits
k = 2^4 × 883 × 38839 × 43889 × 535361

flashjh · 2014-01-30, 13:46

Got a personal best:

65349397

factor = 147198755735760872609938849583897167
k = 1126244177400450019530699339
3 × 7 × 43 × 953 × 14389 × 14951 × 539993 × 11265823
bits: 116.825

cheesehead · 2014-02-06, 11:03

Again in the <1M range:

Seven ECM curves at B1=50000,B2=5000000 found three factors of M670583:
5688983930597081, 27133635573130199 and 1286644266245972687
to go with the smaller three factors previously known.

Miszka · 2014-02-10, 01:50

My personal best
M31051 has a factor: 24523881623890845010007531389564120430998338703 (154,1 bits)
ECM found a factor in curve #24, stage #2
Sigma=3677350809829694, B1=3000000, B2=300000000

2013-12-20, 17:43	#838
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 22426₈ Posts	Se7en Found a factor of 7 ;-) 1453091033734532^3990-5 is composite: RES64: [00000000000002D9] (0.0132s+0.0000s) Now, you'll say who runs pfgw with -f0 and then shares this silliness? (2D9_hex = 3^7-1) Well, it is a part of a silly almost-quintuplet: 1453091033734532^3990-5 is 7p1215 1453091033734532^3990-1 is prime 1453091033734532^3990+1 is prime 1453091033734532^3990+5 is prime 1453091033734532^3990+7 is prime Last fiddled with by Batalov on 2013-12-20 at 17:46*

2014-01-22, 10:39	#844
YuL Feb 2012 Paris, France 7·23 Posts	M67983497 has factor [Tue Jan 21 07:56:58 2014] P-1 found a factor in stage #1, B1=615000. M67983497 has a factor: 1753010986832384134537496993 90.5 bits k = 2^4 × 883 × 38839 × 43889 × 535361

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2013-12-19, 11:09	#837
markr "Mark" Feb 2003 Sydney 23D₁₆ Posts	Nice, cheesehead!

2014-01-09, 16:42	#840
Jwb52z Sep 2002 17×47 Posts	P-1 found a factor in stage #1, B1=705000. UID: Jwb52z/Clay, M69221417 has a factor: 227258439341805150214805809 87.555 bits.

2014-01-17, 14:44	#841
Jwb52z Sep 2002 17×47 Posts	P-1 found a factor in stage #2, B1=705000, B2=14628750. UID: Jwb52z/Clay, M69160561 has a factor: 6801529600136142988183258993 92.458 bits.

2014-01-18, 16:40	#842
Jwb52z Sep 2002 799₁₀ Posts	P-1 found a factor in stage #2, B1=705000, B2=14628750. UID: Jwb52z/Clay, M69408289 has a factor: 118214961583770382650313 76.646 bits

2014-01-19, 16:28	#843
TheJudger "Oliver" Mar 2005 Germany 11×101 Posts	Good start in factoring season 2014: P-1 found a factor in stage #1, B1=670000. M65508869 has a factor: 175927641847360083407185992694635239625947165412379183 (176.88 bits) I'm not 100% sure but I think this is my biggest "regular P-1 double factor" so far. f₁ = 12348810633422410377735721 (83.35 bits) k₁ = 94252967742599940 = 2^2 * 3 * 5 * 193 * 3407 * 21839 * 109391 f₂ = 14246525197431311465890025623 (93.52 bits) k₂ = 108737377204843144719 = 3^3 * 13 * 17 * 19 * 23 * 8597 * 33317 * 145589 Oliver P.S. I'll throw this factor back into the sea using it as bait for the big one.

2014-01-30, 13:46	#845
flashjh "Jerry" Nov 2011 Vancouver, WA 1123₁₀ Posts	Got a personal best: 65349397 factor = 147198755735760872609938849583897167 k = 1126244177400450019530699339 3 × 7 × 43 × 953 × 14389 × 14951 × 539993 × 11265823 bits: 116.825

2014-02-06, 11:03	#846
cheesehead "Richard B. Woods" Aug 2002 Wisconsin USA 7692₁₀ Posts	Again in the <1M range: Seven ECM curves at B1=50000,B2=5000000 found three factors of M670583: 5688983930597081, 27133635573130199 and 1286644266245972687 to go with the smaller three factors previously known.

2014-02-10, 01:50	#847
Miszka May 2013 Poland 3⁴ Posts	My personal best M31051 has a factor: 24523881623890845010007531389564120430998338703 (154,1 bits) ECM found a factor in curve #24, stage #2 Sigma=3677350809829694, B1=3000000, B2=300000000